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Topic: Stereoscopic vision


  
  Stereoscopic Vision
The difference between panorama and stereo vision depends on how many optic nerve impulses are transferred to the opposite side of the brain and how far the two eyes are displaced to the sides of the head.
Stereoscopic vision is essential for predator animals who catch other animals (owls for example), but has secondary importance for animals who are chased (such as rabbits or deer).
Useful stereoscopic vision while we are moving about fades out about 200 meters away, (1 arc minute) (In the laboratory, stereo vision can be measured at best down to 5 arc seconds: meaning stereo vision theoretically extends to 2.7Km).
nzphoto.tripod.com /sterea/3dvision.htm   (4242 words)

  
  Stereoscopy - Wikipedia, the free encyclopedia
Augmented stereoscopic vision is also expected to have applications in surgery, as it allows the combination of radiographic data (CAT scans and MRI imaging) with the surgeon's vision.
To illustrate the difference between true stereoscopic formats and the two-dimensional "wiggle" method, consider what happens when a stereophonic music CD is played through only one loudspeaker: It is no longer possible to hear the stereophonic audio signal since it is now only coming out of one loudspeaker.
COSMUS Free stereoscopic 3d content for astronomical data, such as the large scale structure of the universe and cosmic ray showers, and a large stereo photography archive.
en.wikipedia.org /wiki/Stereoscopy   (4686 words)

  
 vision. The Columbia Encyclopedia, Sixth Edition. 2001-05
Color vision is based on the ability to discriminate between the various wavelengths that constitute the spectrum.
Humans normally have binocular vision, i.e., separate images of the visual field are formed by each eye; the two images fuse to form a single impression.
Stereoscopic color vision is found primarily among the higher primates, and it developed fairly late on the evolutionary scale.
www.bartleby.com /65/vi/vision.html   (918 words)

  
 The Unmuseum - Stereoscopic Vision
Stereoscopic vision involves the use of both eyes.
Stereoscopic vision isn't our only way to detect the distance of something.
With stereoscopic images the viewers' position is locked in.
unmuseum.mus.pa.us /stereosc.htm   (969 words)

  
 "Magic Eye stereograms, vision therapy, visual training, eye exercises, eye training, Anaglyphs, stereo photography"
Stereo viewing is particularly useful in treating problems with binocular vision or stereo vision such as, amblyopia ("lazy eye") and strabismus ("crossed-eyes" or "wall-eyes").
Vision therapy is practiced by licensed optometrists who use medical devices in addition to stereo images in the diagnosis and treatment of their patients.
The procedures employed in Vision Therapy involve medically supervised therapeutic procedures and, in many cases, regulated medical devices (i.e., lenses and prisms) are used by the optometrists.
www.vision3d.com /VTdocs.html   (536 words)

  
 stereoscopy.com - The Library: Wheatstone Paper 1838
When they were so placed that the pictures which their reflected images projected on the two retinæ were precisely the same as those which would have been projected by a cube placed at the concourse of the optic axes, a cube in relief appeared before the eyes.
Another and a beautiful proof that the appearance of relief in binocular vision is an effect independent of the motions of the eyes, may be obtained by impressing on the retinal ocular spectra of the component figures.
No doubt, some law or rule of vision may be discovered which shall include all the circumstances under which single vision by means of non-corresponding points occurs and is limited.
www.stereoscopy.com /library/wheatstone-paper1838.html   (7297 words)

  
 parenting: pediatric eye care, children's vision, lazy eye, esotropia, exotropia, exophoria, esophoria, convergence ...
Vision therapy is remarkably successful in rehabilitating all types of binocular vision impairments including amblyopia (lazy eye), strabismus, esotropia, exotropia, hyperphoria, or loss of binocular fusion due to hyperopia (farsightedness), myopia (nearsightedness) or astigmatism in one eye.
Vision therapy can improve visual skills such as stereopsis, binocular coordination, binocular fusion, eye teaming skills, convergence, visual acuity, focusing skills, stereoscopic vision, depth perception, eye tracking, fixation skills, visual form discrimination, visual memory, hyperopia, and visual motor integration (balance, body coordination, hand-eye coordination).
Vision therapy (or orthoptic therapy) is a very effective type of physical therapy for the brain and the eyes.
www.children-special-needs.org /questions.html   (2835 words)

  
 "Glossary: depth perception, amblyopia, lazy eye, strabismus, pediatric ophthalmologists, pediatric optometrists, ...
STEREOPSIS: (stereopsis or stereoscopic vision) a byproduct of good binocular vision; vision wherein the separate images from two eyes are successfully combined into one three-dimensional image in the brain.
VISION THERAPY: (also known as vision training, visual therapy, visual training): supervised therapy involving procedures (eye exercises) which are aimed at improving visual skills such as eye teaming, binocular coordination and depth perception, focusing, acuity (clarity of sight), and "hand-eye" or "vision-body" coordination.
Vision Therapy is practiced by optometrists and includes evaluation, supervision, and the use of medically regulated devices.
www.children-special-needs.org /vocvis.html   (1192 words)

  
 Stereopsis
3D vision, binocular vision and stereopsis all mean the same thing: That remarkable power of the visual sense to give an immediate perception of depth on the basis of the difference in points of view of the two eyes.
He immediately suspected that steroscopy, and binocular vision in general, was not due to any corresponding points or convergence of optic axes, and set out to prove this.
This stereoscope was better suited to laboratory investigations than to the enjoyment of stereograms in the sitting room, largely because of the possible adjustments, which made it hard to set up, and its unwieldy size.
www.du.edu /~jcalvert/optics/stereops.htm   (4937 words)

  
 Hawkeen Training
In the 1950's it was discovered that the ability to see stereoscopic images necessitates visual information passing through the corpus callosum, a huge band of myelinated fibers that connects the two cerebral hemispheres.
Therefore it must follow that a stereoscopic image is seen with the mind not the eyes, and in fact such an image exists only in the mind.
The stereoscope was invented in 1838 by Charles Wheatstone and required special photographs or images to view.
www.navaching.com /hawkeen/mandala.html   (1027 words)

  
 Vision & Visual Systrms
Humans and other animals that are able to focus both eyes on a single object are capable of stereoscopic vision, which is fundamental to depth perception.
The principle to stereoscopic vision can be described in terms of the vision process involved in the use of a stereoscope, which presents an image from two slightly different angles so that the eyes can merge them into a single image in three dimensions.
When the eye is suddenly exposed to bright light, vision is poor for a short period of light adaptation in which the cones become the essential visual elements.
www.eyecareindia.com /SpectrumVisualSys.html   (452 words)

  
 "Glossary: pediatric eye care, binocular, depth perception, amblyopia, lazy eye, strabismus, optometrists, ...
: (stereopsis or stereoscopic vision): a byproduct of good binocular vision; vision wherein the separate images from two eyes are successfully combined into one three-dimensional image in the brain.
:a result of successful stereo vision; the ability to visually perceive three dimensional space; the ability to visually judge relative distances between objects; a visual skill that aids accurate movement in three-dimensional space.
The result is often a loss of stereoscopic vision and binocular depth perception.
www.vision3d.com /vocvis.html   (772 words)

  
 HighBeam Encyclopedia - vision
VISION [vision] physiological sense of sight by which the form, color, size, movements, and distance of objects are perceived.
The human eye functions somewhat like a camera; that is, it receives and focuses light upon a photosensitive receiver, the retina.
Horace Mann's vision of the public schools; is it still relevant?(book)(Brief Article)(Book Review)
www.encyclopedia.com /html/v/vision.asp   (991 words)

  
 three-dimensional stereoscopic vision   (Site not responding. Last check: 2007-10-26)
One important aspect of binocular vision is a process called stereopsis, which uses tiny differences in the views of the eyes to process an accurate three-dimensional representation of near space.
According to our hypothesis, stereo vision uses correlation-decorrelation boundaries to detect corresponding features in the views of the left and right eye and uses these boundaries to simplify complex problems of three-dimensional segmentation.
Stereopsis, stereoscopic vision, binocular vision, three-dimensional perception, da Vinci stereopsis, half-occlusion.
www.psykologienkustannus.fi /sps/abstraktit/abstract_4_598293_310.htm   (175 words)

  
 Let us Build a Stereoscope
Primates, from which man descends, developed stereoscopic vision for the necessity of evaluating exactly the position of the branch to which grasp during moving on the forest trees.
The stereoscope is a simple optical apparatus which make easier the reassembling the two stereograms in an unique three-dimensional view.
Using the stereoscope of figure 2, the images cannot be larger of interpupillary distance (about 6 cm), otherwise the eyes would be forced to diverge.
www.funsci.com /fun3_en/stscp/stscp.htm   (1750 words)

  
 Stereoscopic Vision in James’s “A New England Winter”
The basics of how a stereoscope functions “were first laid out as far back as ancient Greece when Euclid explained the principles of binocular vision.
He demonstrated that the right and left eyes see a slightly different version of the same scene and that it is the merging of these two images that produces the perception of depth” (History).
Photographs for a stereoscope, or stereo pictures, are taken by means of a camera with two lenses that provide two separate pictures 2.5 inches apart, about the distance between the eyes.
mockingbird.creighton.edu /english/Pigeon.htm   (3070 words)

  
 Building a Stereoscopic Microscope
Although the stereoscopic microscope does not allow you to observe such small objects as microbes, there are nonetheless an amazingly large number of things to observe with this type of microscope.
Stereoscopic microscopes are widely used by researchers all over the world, in fields such as the entomology, botany, mineralogy, including applications like micro-surgery, micro-electronics and in may other commercial and industrial activities.
The simplicity and ease of use of the stereoscopic microscope is also attractive for the adult naturalist or amateur scientist who does not always have the time nor patience to prepare specimens for viewing.
www.funsci.com /fun3_en/uster/uster.htm   (8596 words)

  
 The Unmuseum - Stereoscopic Vision
Humans, along with many animals, have the ability to see three-dimensional images through the use of stereoscopic (also referred to as stereographic) vision.
Stereoscopic vision involves the use of both eyes.
Stereoscopic vision isn't our only way to detect the distance of something.
www.unmuseum.org /stereosc.htm   (969 words)

  
 Stereoscopic Displays and Virtual Reality Systems VIII - Proceedings Preface
This year’s Stereoscopic Displays and Applications (SDandA) conference was held over the period 22-24 January 2001 and combined technical sessions with complementary activities such as the demonstration session, keynote presentation, standards forum, 3D video screening evening, and the author/attendee dinner.
The five papers in the session discussed various stereoscopic computer-based tools and applications including the Winx3D API which allows software developers to easily add stereoscopic display support to their programs and a range of programs which test and diagnose stereoscopic vision.
As an encouragement for authors to use stereoscopic display techniques in their presentation, a prize was offered for the best use of stereoscopic display techniques during a conference presentation.
www.stereoscopic.org /2001/preface.html   (2641 words)

  
 Welcome to Eagle Vision Eye Care!
Vision Therapy is a series of exercises specific for the individual's problem using charts, lenses, prisms and filters to improve focusing, eye teaming and tracking of the eyes.
BINOCULAR VISION: vision as a result of both eyes working as a team; when both eyes work together smoothly, accurately, equally and simultaneously.
VISION THERAPY: (also known as vision training, visual therapy, visual training): therapy involving procedures (eye exercises) which are aimed at improving visual skills such as eye teaming, binocular coordination and depth perception, focusing, acuity (clarity of sight), and "hand-eye" or "vision-body" coordination.
www.evec.com /visiontherapy.htm   (1509 words)

  
 Stereo Vision   (Site not responding. Last check: 2007-10-26)
Without stereoscopic vision it is impossible to be absolutely sure whether these lines represents a 3D cube, six 2D triangles or simply a group of linear elemnts.
Stereoscopic vision enhances perception of architectural forms and spaces.
Stereoscopic vision is the result of having two eyes.
www.engg.uaeu.ac.ae /a.okeil/stereo-vision   (343 words)

  
 Stereoscopic Vision using Lenticular Lenses for Postcards, POP Signs etc.
Stereoscopic Vision using Lenticular Lenses for Postcards, POP Signs etc.
Stereoscopic vision is defined as three-dimensional vision produced by the fusion of two slightly different views of a scene received from each eye.
A limitation of human vision is that we can only see 3D up to about 15 meters (50 feet).
www.humaneyes.com /tech-support/3d-knowledge-base/faq-viewing-3d   (286 words)

  
 Stereoscopic (3D Stereo) Pictures
Stereo vision in humans only functions for comparatively near objects, beyond which the difference between the two images becomes too small for the brain to compute distance information.
Consequently, the depth at which stereoscopic vision is possible in these pictures goes beyond that which we would achieve in reality (this is known as
Adopt a comfortable viewing distance from the monitor so that your eyes are not straining in any way (in these pictures the stereoscopic effect is not dependent upon distance, since the two images are fixed in space and present the same information to the eyes regardless of the viewing distance).
homepage.ntlworld.com /mjpowell/Stereoscopic/Stereoscopic.htm   (853 words)

  
 Stereoscopic viewing   (Site not responding. Last check: 2007-10-26)
This brief article introduces the geometry of stereoscopic vision, and then walks you through a couple of examples of the use of stereoscopic vision in displays.
The human visual system (described in the articles about perception and depth cues) has a physical configuration that supports two separate images to be gathered (each eye).
The human vision system only supports this stereoscopic depth perception for objects that are between approximately 8 inches and 18 feet.
www.hitl.washington.edu /scivw/EVE/III.A.1.b.StereoscopicViewing.html   (553 words)

  
 Treatment of Vision Impairments.
The device is intended for diagnostics and treatment of strabismus, amblyopia and other binocular and stereoscopic vision impairments, for cultivating, training and developing of stereoscopic vision.
The device can be useful both for children and for special control in such fields of human activities as flying, navigation and so on, where the stereoscopic vision have a great importance.
The results of many tests in numerous ophthalmologic clinics showed that the device improves the quality of binocular functions, helps to increse fusion reserves, to decrese the thresholds of the depth perception and stereoscopic vision.
www.geocities.com /elkhov   (311 words)

  
 Basics of Stereoscopic 3D Hard- and Software
Stereoscopic or binocular vision was invented by nature hundreds of millions of years ago.
Stereoscopic 3D vision is an important sense, comparable to the ability to see colors.
To allow stereoscopic vision there is a little LCD or CRT monitor for each eye.
www.stereo3d.com /quick.htm   (1597 words)

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